#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     | Website:  https://openfoam.org
#   \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
#    \\/     M anipulation  |
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM.
#
#     OpenFOAM is free software: you can redistribute it and/or modify it
#     under the terms of the GNU General Public License as published by
#     the Free Software Foundation, either version 3 of the License, or
#     (at your option) any later version.
#
#     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
#     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
#     for more details.
#
#     You should have received a copy of the GNU General Public License
#     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
#
# Script
#     wmakeFilesAndOptions
#
# Usage
#     wmakeFilesAndOptions
#
# Description
#     Scan current directory for directories and source files
#     and construct Make/files and Make/options
#
#------------------------------------------------------------------------------
Script=${0##*/}

usage() {
    cat<<USAGE

Usage: $Script
options:
    -help | -h      Print the usage

    Scan current directory for directories and source files
    and construct 'Make/files' and 'Make/options'

USAGE
}

error() {
    while [ "$#" -ge 1 ]; do echo "$1"; shift; done
    usage
    exit 1
}

#------------------------------------------------------------------------------
# Parse arguments and options
#------------------------------------------------------------------------------

while [ "$#" -gt 0 ]
do
    case "$1" in
    -h | -help)   # Provide immediate help
        usage && exit 0
        ;;
    -*)
        error "unknown option: '$*'"
        ;;
    *)
        break
        ;;
    esac
done

# No arguments
[ "$#" -eq 0 ] || error "unexpected arguments: '$*'"


#------------------------------------------------------------------------------
# Check environment variables
#------------------------------------------------------------------------------
for check in WM_OPTIONS WM_LINK_LANGUAGE WM_DIR
do
    eval test "\$$check" || {
        echo "$Script error: environment variable \$$check not set" 1>&2
        exit 1
    }
done

if [ -d Make ]
then
    echo "$Script error: Make directory already exists" 1>&2
    exit 1
else
    mkdir Make
fi

[ -e Make/files ] || {
    echo "$Script: Creating Make/files"
    "$WM_DIR/scripts/makeFiles"
}

[ -e Make/options ] || {
    echo "$Script: Creating Make/options"
    "$WM_DIR/scripts/makeOptions"
}


#------------------------------------------------------------------------------
# Cleanup local variables and functions
#------------------------------------------------------------------------------

unset Script usage error


#------------------------------------------------------------------------------
